The experimental group (an elementary school class) in a study was given new reading materials.  The control group was not given the new reading materials.  In the control group, the teacher left the school in the middle of the study and the school had to hire a new teacher.  In the experimental group, the same teacher remained throughout the semester.  The fact that the teacher changed in one group and not in the other could have been a ________threat to internal validity:   factorial design statistical regression history selection

Q: The brain areas involved in the default mode network are most similar to the areas involved in which...

A: The human brain accommodates a large scape of networking system wherein a certain group of composed ...

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A: A group is made up of two or more interacting person who share common goal , or have a stable relati...

Q: Discuss the concept of self according to James’ Cognitive Construction of the self.

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Q: Suppose that I carried out a study by running all of the participants in my control group in the mor...

A: A confounding variable also described as a confounder or confounding factor is the third variable in...

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Q: Be able to describe the Sanchez Family. Define of Absolutely Threshold.

A: The ecological model examines the structure as a whole and why stressful situations impact it. The b...

Q: Humanistic therapists encourage people toward achieving self-understanding and personal growth.  Tru...

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Q: What are the common traits of Antisocial personality disorder ?

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Q: Suppose that I carried out a study by running all of the participants in my control group in the mor...

A: Experiment group refers to that group in the research who are introduced and exposed to the independ...

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Q: Which of the following is wrong about working memory?Answers:a.It is limited to holding a few items ...

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A: In sensory processes, perception is the phenomena involved in decoding the sensed data from the outs...

Q: Two important characteristics of the sensorimotor stage of cognitive development are__ and O a. obje...

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Q: What are the specific goals and techniques of Rogers’ client-centered approach?

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A: true 

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Q: How does conditioning affect us in terms of prejudice and motivating us to do more?

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